Sorry Ed, had to slip away for a while.
I think Dave has nailed it, but I hope this is a bit clearer.
If I go to "My Profile" I see 5137 answers on 257 pages..... all listed OK.
If I go to any thread where I have posted, and click on my avatar, I get 7909 answers on 396 pages........... with the last several pages unpopulated.
Clearly, from your lofty perch, you are obviously getting only one of these readings.
Perhaps you access my data from only one direction, whereas I can get there from two directions.